Firefighters attend to people injured during train derailment Friday night.
Passengers try to get out of a Metro-North train after it collides with another train Friday night.
Major train derailment near the Fairfield Metro-North station Friday night. The photo was taken by Harold Bridgeforth.
Stranded passengers talked to Eyewitness News about the collision .
The following photo was taken by Rob Oliver, who was injured during the train derailment.
FAIRFIELD, CT (WFSB) -
Cleanup efforts continue as investigators from the National Transportation Safety Board continue their investigation into what caused a major train derailment.
According to officials for the NTSB, the accident occurred at 6:10 p.m. Friday after an eastbound train derailed in Bridgeport and was struck by a westbound train.
More than 60 people were injured, some critically and were transported to area hospitals.
On Saturday, NTSB member Earl Weener said investigators discovered a fracture in a section of rail on the eastbound track.
Weener said it's not clear if the accident caused the fracture or if the rail was broken before the crash. a piece of that rail will be sent to the lab for analysis.
"In an investigation of this sort we don't rule anything out to begin with," Weener said. "We consider any possible cause. In the investigation process is really to rule things out."
At 11:25 am Sunday morning, crews on scene had managed to re-rail all of the damaged cars involved in the wreck.
Amtrak service from New York to New Haven remains suspended indefinitely while service from Boston to New haven is limited.
Metro North service between South Norwalk and New haven remains suspended indefinitely.
Passengers explain what they felt during the collision
"Felt the train go off the rails," said passenger Scott Perillo. "It started moving back and forth, and then the impact of hitting the other train and we stopped right away."
Eyewitness News talked to at least one passenger that said the train was traveling around 50 mph.
"Doors were flying open, luggage was flying everywhere," said passenger Tara Shah. "It was pretty rough."
Passengers said they were "pretty scared" and "jolted" people out of their seats.
"It felt like things might be bad for all of us," Perillo said.
Passengers were told to remain seated for 10 minutes, but once smoke filled some cars, it was chaos.
"It was very loud. The impact was loud and abrupt," Shah said.
We had to wait 45 minutes for a train to come. Once the train came in, it had to sit there for another half an hour to wait for dispatch," said Toray Parks, who was taking a train from Bridgeport to New Haven. "I was like, 'I need to get home.'"
Larisa Bernier was on her way to New York City. She was right behind the two trains that collided and was turned right back around to her starting point. When she returned, it wasn't the same Union Station in New Haven that she had left an hour earlier.
"When I got off the train and seeing this, I'm like where did all these people come from and they're like that's the bus line," Bernier said. "I'm like, 'Oh my God, I'm not taking the bus. I'll be here all night. And with a child, I can't stay here all night.'"
Anna Swartz stood in the painful line Friday night to get a bus ticket, which was her first one ever.
"I already wasn't going to get into New York until late tonight," she said. "But now it's going to be even later. I'm pretty bummed."
American Red Cross sent volunteers to provide providing water and snacks for first responders.
"Our service to first responders at major incidents helps them to stay hydrated and energized," said Red Cross spokesperson Paul Shipman.
Metro-North officials said they will continue to update their customers as more information becomes available. For more information and updates, click here or follow @METRONORTHTWEET.
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